Medicine: Amazing Births

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Dr. Georgeanna Seegar Jones, vice president of the first test-tube-baby clinic in the U.S., at Eastern Virginia Medical School in Norfolk, thinks the technique has a major drawback: "Asking a woman to have a pregnancy, even an extremely brief one, is very different from asking a woman to donate an egg."

Scientists see immense possibilities for the donor-egg techniques. Says Australia's Dr. Wood: "It is now theoretically possible to override menopause, thus extending the childbearing years of women who marry late in life, remarry or defer having children until middle age."